Rotate your pans more than once, like every 10 minutes, to even out baking. I keep an oven thermometer hanging inside to see real temps, not just what the dial says. If one corner burns, I turn the tray or shift it to a different rack. Recipes are just guides, you gotta tweak them for your own oven. My old gas oven ran 50 degrees hot, so I always set it lower than the recipe says. After a while, you learn the patterns and can adjust without thinking too much.